How can I convert .wav file to ascii list with time points?

Hi,

I basically want to convert a wave sound file into some sort of readable text file that I can later work with/analyse in Matlab. I was told converting it to ascii would probably be best, but how would I go about doing this, but still have time points in correlation with the converted ascii text?

I've tried using wavread('filename') to get the double, and then dlmwrite('filename', data), but not sure what the dlmwrite's filename parameter is , and also if its the right function to use (and also what to do after to import it back into Matlab for further use).

Oh and possibly vice-versa too once I've used the converted matrix.

Any help is appreciated, Andrew